fix: use jambonz.env as single source of truth

kubernetes/api-server/api-server-deployment.yaml

@@ -17,31 +17,14 @@ spec:
       nodeSelector:
         kubernetes.io/arch: amd64
       containers:
-        - env:
-            - name: ENABLE_METRICS
-              value: "0"
+        - envFrom:
+          - secretRef:
+              name: jambonz
+          env:
             - name: HTTP_PORT
               value: "3000"
-            - name: JAMBONES_CLUSTER_ID
-              value: jb
-            - name: JAMBONES_LOGLEVEL
-              value: info
-            - name: JAMBONES_MYSQL_DATABASE
-              value: jambones
-            - name: JAMBONES_MYSQL_HOST
-              value: mysql
-            - name: JAMBONES_MYSQL_PASSWORD
-              value: jambones
-            - name: JAMBONES_MYSQL_USER
-              value: jambones
-            - name: JAMBONES_REDIS_HOST
-              value: redis
-            - name: JAMBONES_REDIS_PORT
-              value: "6379"
             - name: JAMBONE_API_VERSION
               value: v1
-            - name: NODE_ENV
-              value: production
           image: jambonz/jambonz-api-server:latest
           name: api-server
           ports: